Unitary collecting, distributing and supporting plate for stage washers



w. HUPPMEIER 3,016,234 UNITARY COLLECTING. DISTRIBUTING AND SUPPORTINGJan. 9, 1962 PLATE FOR STAGE WASHERS Filed Dec. 6, 1957 2 Sheets-Sheet 1FIG by ,fgiqu Jan. 9, 1962 w. HUPPMEIER 3,016,234

UNITARY COLLECTING. DISTRIBUTING AND SUPPORTING PLATE FOR STAGE WASHERSFiled Dec. 6, 1957 2 Sheets-Sheet. 2

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I I8 I I4 1 j I 0' /4' i INVENTOI? ATTORNEYS United fitatespatentOfi-fice Patented Jan. 9, 1962 3,016,234 UNITARY COLLECTING,DISTRIBUTING SUPPORTING PLATE FOR STAGE WASHERS Wilhelm Hiippmeier,Essen, Germany, assignor to Didier Werke A.G., Wiesbaden, Germany FiledDec. 6, 1957, Ser. No. 701,178 Claims priority, application Germany Dec.31, 1956 3 Claims. (61. 261-98) Stage tower washers which are generallycircular in cross-section for the interaction between gases or vaporsand fluids are subdivided into a plurality of superposed treatmentspaces provided with scrubbing or filling bodies through which the fluidflows downwardly while the gases flow upwardly. In these constructionsbetween the respective superposed treatment spaces at a spaced andseparated.

distance from one another there has been provided a supporting plate orbottom for the insertion containing the scrubbing or filling bodies, acollecting bottom for the fluid discharged from the filling bodies and aplate or bottom for distributing such fluid to a-subsequent insertion'or a similar device. In such a construction each bottom or plate for theabove purposes required a construction having an associated bearingcapable of resisting any bending- Also, due to such an arrangement thetreatment space containing the filling bodies suffered a considerableloss in height. It is an object of this invention to provide aconstruction eliminating the above disadvantages.

It has been suggested in order to decrease the space between theindividual plates or bottoms to support the bottom 'for the fillingbodies by means 'of spacers positioned upon the bubble tray or plate.However, in this case also the bottom carrying the filling bodies had tohave a suflicient resistance to counteract bending. It is a furtherobject of the invention to eliminate the above disadvantage.

A further object of the invention is to provide a washer plate or bottom"for tower stage washers wherein the supporting plate for the scrubbingor filling bodies insertion, the collecting plate or bottom and thedistributing plate or bottom for the fluid constitute a single unitarybottom or plate which will eliminate the aforesaid disadvantages.

With the above and other objects in view which will become apparent fromthe detailed description below some preferred embodiments are shown inthe drawings in which:

FIGURE 1 is a diagrammatic vertical cross-sectional view taken onsection line l1 of FIGURE 2 through a bottom or plate;

FIGURE 2 is a diagrammatic view of a horizontal sectional view takenalong section line 2--2 of FIGURE 1;

FIGURE 3 is a diagrannnatic vertical cross-sectional view taken alongsection line 3-3 of FIGURE 2 and,

FIGURE 4 is a diagrammatic vertical cross-sectional view showing amodified construction.

Referring to FIGURES 1, 2 and 3 the unitary construction embodying asupporting bottom, a collecting bottom and a distributing bottomcomprises a ring 1 of channel construction supported by the annularsupporting ring 8 fixed to the interior wall of the tower. Mounted uponthe ring 1 in any desired way are a plurality of hollow beams 2 whichextend parallel to a diameter of the tower and are spaced a smalllateral distance from one another.

These beams 2 are partially in open connection with the The channel orring conduit 1 is open towards the top and is closed at the bottom. Thehollow beams 2 are also open towards the top and closed towards thebottom by the horizontal partition walls 4. The partition walls 4located in the hollow beams 2 and the conduit l form the conduits 5 inthe beams 2 which are open towards the top below the grate 3 and therebyform the collecting bottom or plate for the washing stage. Below the conduits 5 are the conduits 6 which constitute the distributing bottom orplate for the washing stage. The grate 3 as mentioned above, constitutesthe supporting bottom for the filling bodies insertion in the space 7and is supported by the channel ring 1 and the beams 2 upon thesupporting ring 8. The collecting bottom and the distributing bottomfrom the construction above described are also supported by the anglering 8.

Below the plate above described is the space 9 wherein the fillingbodies for the next lower stage are positioned. The gases penetratingthe filling bodies insertion 9 flow upwardly through the spaces 10located between the hollow beams 2 and then through the grate 3 into theinse-rtion 7.

The fluid leaving the filling bodies insertion 7 passes downwardlythrough the grate 3 and collects in the upper portion'of the ringconduit 1 as well as in the conduits 5 of the hollow beams 2." From hereit is led by the ring conduit 11, see FIGURE 2, which extends over apartial length of the ring conduit 1 to the fluid outlet 12. The fluidaccumulating here may now be pumped to the next higher located bottom orplate in order to pass it again through the treatment space 7. Itentersthe bottom or plate through the fluid inlet 13 into the main supply 14which is formed by the partition wall 4 in the ring conduit 1. Theconduit 14 extends over the ring conduit 1 for such a length that it mayconnect with all the distributing conduits 6 which are open towards theconduit 14. The conduit 14 is closed at both ends by the vertical Walls14a. The conduits 6 are closed at their ends 15 which are locatedopposite to the conduit 14. The outlet of the fluid towards the fillingbodies insertion is accomplished by nozzle like openings 16 which aredispersed over the entire length of the conduit 6 at the bottom thereofwhereby the individual fluid jets may impinge on the spraying discs 17,as particularly shown in FIGURES 1 and 3.

The distributing bottom comprising the fluid supply conduits 6 areenclosed on all sides by means of the partition walls 4. Because ofthis, particularly when a fluid circulating pump is used it is possibleto maintain the fluid here under a higher pressure than is customarywith the 'usual hydrostatic pressure. Because of this the individualfluid jets impinging on the spraying discs 17 are subjected to a greaterforce and this improves the fluid distribution on the filling bodiesinsertion 7 or 9. The necessary smaller cross-section for thepressure-conduits 6 in contrast to the cross-section of the headconduits Sis made possible by a tapering of the hollow beams 2downwardly and this tapering is advantageous at the same time for thepassage of the rising gases or vapors between the beams 2. Furthermore,the proportioning of the cross-section of the two conduits 5 and 6 whichare superposed can be influenced by the determination of the position ofthe partition wall 4.

The fluid accumulating in the ring conduit 11 can, however, as amodification only be led with hydrostatic pressure on the same bottom tothe distributing device. For this, the two ends of the ring conduit 14remain opened. The fluid outlet 12 as well as the fluid inlet 13 becomesuperfluous. The accumulating fluid in ring conduit 11 passes on thesame conduit level to the ring conduit 14, from where it distributesinto the conduits 6.

A further modification is shown in FIGURE 4. In this form of theinvention the fluid supply conduits 14' and 6' are formed as pipes ofcircular cross-section which are resistant to compression. The fluidsupply conduit 14' is annular and extends around the entirecircumference of the plate while the distributing conduit 6 of the beams2 have an open connection at both ends with the conduit 14. The annularsupply conduit 14 is provided with an exterior flange 18 which issupported upon the annular angle iron 3' secured to the interior wall ofthe tower. The grate is shown at 3' resting upon the top of the beams 2and an interior annular flange 19 fixed to the inner circumference ofthe supply conduit 14'. The dis tributing conduits 6 are provided attheir lower surface with spaced apertures through which the fluid may bedischarged as shown by the arrows 20. Above the distributing conduits 6are located the collecting conduits and the filling bodies insertionabove the plate are diagrammatically indicated at 7 while the insertionbelow the plate is indicated at 9'. The outlet for the fluid is shown at12' and the inlet is shown at 13'.

With the construction shown in this modification the supply of fluid maybe accomplished under high pressure and the conduits 6' are formed assupplying pipes for the distribution of the fluid to the filling bodiesbelow the plate.

The passage through the grate plane 3 located above the spaces for thepassage of the gas have to be so proportioned relative to the entireplate or to the crosssectional area of the tower that the amount offluid flowing through the gas passageslll' to the next lower locatedfilling bodies insertion 9' corresponds to about the amount of fluidflowing over each bottom.

By the combination of the supporting body such as 3', the collectingbottom such as the channels 5 and 11 and the distributing bottom formedby the passages 6", the space between the filling bodies insertions maybe kept much lower and therefore the constructional height of the towerwasher may be better utilized or in order to secure the same capacity asin tower washers at present in use may be essentially diminished. Alsothe combination of the collecting bottom and the distributing bottominto the hollow beams 2 and 2' results in a greater height of suchhollow beams and thereby secures an increased cross-section of themoment of inertia so that the entire bottom or plate carrying thefilling body insertions remains resistant to bending even with a reducedWall thickness thereby reducing the specific weight of the bottom orplate.

It is thought that the invention and its advantages will be understoodfrom the foregoing description and it is apparent that various changesmay be made in the form, construction and arrangement of the partswithout departing from the spirit and scope of the invention orsacrificing its material advantages, the forms hereinbefore describedand illustrated in the drawings being merely preferred embodimentsthereof.

1 claim:

1. A stage washer comprising an inset support bottom, a fluid collectingbottom and a distributing bottom, said fluid collecting bottomcomprising an annular conduit, said distributing bottom also comprisingan annular conduit located concentrically below .said first mentionedconduit, a plurality of cross conduits supported by said annularconduits arranged at a slight lateral spacing from one another andextending parallel to a diameter of said annular conduits, said crossconduits upon said distributing conduit being closed on all sidesandresistant to compression, spray nozzles upon said distributing crossconduits, said cross conduits upon said collecting bottom being opentowards the top forming troughs, a supporting grid for the filling bodyinset positioned on said troughs, said annular conduit upon saiddistributing bottom having a fluid inlet for said cross conduits of saiddistributing conduit to said spray nozzles whereby the fluid iscollected in said troughs 'and in said annular collecting conduit whichleaves the filling body inset and is. carried 01? in said annularcollecting conduit.

2. A stage washer as set forth in claim 1 wherein said distributingconduit and said distributing cross conduits have a quadrangular crosssection.

3. A stage washer as set forth in claim 1 wherein said distributingconduit and said distributing cross conduits are in the form of pipesand said pipes are provided with extensions forming said troughs.

References Cited in the file of this patent UNITED STATES PATENTS86,0,753 Lloyd July 23, 1907 1,989,033 Weir Jan. 22, 1935 2,010,010Chillas Aug. 6, 1935 2,081,615 Byer May 25, 1937 2,651,512 Voleau Sept.8, 1953 2,831,667 James et al Apr. 22, 1958 FOREIGN PATENTS 22,065France Nov. 30, 1920 (1st add. of 472,689)

195,185 Germany Feb. 10, 1908 749,900 Great Britain June 6, 1956 943,569France Oct. 4, 1948 1,003,799 France Nov. 21, 1951

